Dipping and quenching arrangement for metal bars or other metal articles



I. R. C. AUGUST.

DIFPING AND QUENCHING ARRANGEMENT FOR METAL BARS 0R OTHER METALARTICLES.

1. R. c. AUGUST.

DIPPING AND QUENCHING ARRANGEMENT FOR METAL BARS 0R OTHER METALARTICLES.

APPLICATION FILED MAY 8.1920,

1,366, 152.- Patented Jan. 18, 1921.

4 SHEETS--SHEE-T 2.

MMM/MW 1. R. C. AUGUST.

DIPPING AND QUENCHING ARRANGEMENT FOR METAL BARS 0R OTHER METALARTICLES.

APPLICATION FILED MAYA |920.

1,366,152. L Patented Jan. 18,1921.

4 4 sHfETs'sHEeTa J. n. c. AUGUST. l DIPPING AND QUENCHINGARRANGEMENTFOR METAL BARS 0R OTHER METAL'ARTICLES.

APPLICATIUN FILED MAY B. 1920. I

A 1,366,152. Patented Jan. 18,1921.

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ronfinnns nonnnfr ennnnnens'r. or tramitan, ENGLAND.

nirrine AND QUnNonrne Anniinenivinnr non METAL :Branson ornnnnre.

ARTICLES.

Specification of Letters Patent. Patentgd J 1L 1S" 1921.

applicati@ filed nay s, 192e. sei-iai No. erases.

Toallan/Lovettmay concern.' i .i y y lle it known that l, ,foiiiiniiisBonnin @aan iincns'r, a subject ofthe -King of lnlreat Britain, residingin Halifax,` Yorkshire, in the Kingdom of England, `haveinfventedcertain new and useful Dipping and tdiienching ^irrangements for MetalBars or other Metal-Articles, of `Which the folloiving is aspecification.

llhis invention relates to iniprovel'nents in apparatus for annealing,tempering or i otherwise modifying the physical characters One of theobjects ofthe contrivance to enable long thin bars to be handledseparately instead of in bundles, thereby giving uniform results in theheat treatment and keeping the bars asst aight as possible. .Y

My improved dipping arrangement is cxtreniely convenient in handlingheavy sec-` 'tion bars, and the bars are notreleased by carriage withitsplatfformor trough; y

` the dipping arrangement until just clear of the oil, thus avoidingexiressive splash. By the bars becoming submerged perfectly level in theoil, warping is reduced to a minimum, also excessive Waste andcombustion of the oil is prevented by the bars being quickly covered,thus showing` a large sav* ing `in oil. rllhe` dipping arrangement iscombined With a shaking gear inthe oil tank, whereby the `articles arekept iii-motion iii the oiland insuring a uniforin cool` ing ofi. Y u

The invention is characterized by the combination with a furnace orfiiriiaces` in `which the heating of the metal bars or other or troughinto alineinent With` the furnace so that the heated y `bars can `bedirectly charged thereonto, andbe then conducted into a positiondirectly above the .dipping tank to drop the bars into it. The platformortrough is longitudinally divided into two `portions, pivoted to thecarriage, the two ialves` being ar 1anged so asto be maintainedhorizontal. or approximately so, With then' meeting edges in contact oriieailyso,

ivhenfiii position to receive the `hot bars,

etc., but adapted to tilt or dip down on their pivots 4so as to openandassuine an inclined position when releasing hot bars into thequenching tank. In combination with'the interior of" the quenchingtank,` a dipping -`tray is `provided onto which the bars are dischargedfrom the platform `or trough, 3 such dipping device being given bysuitable gear, an up and down inotion in the tank,

y or raised up clear ofthe liquid in the tank so as to drain and allowtliebars to be removed. y

`The invention will be understood froin the followingdescription,.reference being had tothe acconilfianying drawings inwhichliigure l is asideelevation of the apparatus;

. 2 is an end elevation ofthe dipping tray in the tank together With theapparatus l tor giving it an up and down motion inthe tank or holding itclear of the liquid.

Fig. 3 is an end elevation of the traveling `lig'. fl is an end vievv ofthe platform or .trough on` a larger scale show-ing the two parts 11itheir iilosed and openposition;

`my apparatus applied thereto.

Referring to? these drawings Il is the `fuinace or furnaces in `whichthe heating of the metal bars "or other articles can be carried out, Qisthe oil tank or tanks in convenient proximity to the said furnaces"in'wliich the dipping orouenching of such heated bars takes.plafce,`3,'4e, is the platform ,ortrough supported bya suitablecarriage 5,. 6, adapted to travel along track such as 7, and arranged tobring an empty platform vor trongli into alinement `with the furnacesoico` that the heatedbars can be directly charged thereunto and bethenconducted into a `position directly above the dipping tank.` "Theplatform ortrough is longitudinally divided into tivo portions .3, etpivoted to the carriage 5, (S, at `8, `9, the two halves ben 'positionto receive the hot` bars etc., but

fio

other, when pushing power is applied at one 'end and-consequently wedgethe wheels on the` track. This carriageV is composed of twoy oppositedepending hangers 5, 6 more orv less converging toward each other below.These hangers and 6 are suitably stayed together with cross stays l2.The

tWo halves 3, 4, 'of the platform are pivoted atv each side to therespective hangers by thepivotal` rods 8, 9, and counter weightsaregprovided to maintain the platform in thefclosed position.Theplatform members '1 are arranged towork in any suitable way,

as for,instancemounting bell crank levers '14 on lpivot pins 15 alsosecured to the hangers at the ends thereof, and by mounting other bellcrank levers 16 on pivot pins 1T also secured to the yhangers at the endthereof, and connecting one arm ofthe bell crank levers 14, 16 togetherby connecting rods 18 .and*connecting` the other arm of the 'said 'bellcrank levers to crank arms 19 proyecting from the respectivelongitudinal ypivotal shafts 8,-9. The pivotal shaft 8 is provided witha crank handle 2O and the sha i't 9Y is 'provided'with asimilar handle,and by operating either handle, the platform inem- `bers 3, 4 arearranged 'to'work in unison vthrough being connected by the connectinglinks and cranks aforesaid. Counter weights 4'? are provided to maintainthe platform members in the closed position, and 'fast-ening devicesmayalso be provided to keep them closed.' Each Vhahe ofthe pivoteddivvided platform consists of a plate or 'plates 3 and 4 and aseriesotngers 21,

'V22 extending'beyond the meeting or adja- .cent-edges ofY the plates,the lingers 2l of lone platform portion alternating with andbeingxoppositely directed to the` fingers 22 Aof the4 other platformportion, so that when the twov portions Vare horizontal or approxi-`fmately s0, theyl forni a trough the plates Y of which form the'floorfor the bars to rest on, whilewhen the two halves are turned into aninclined position, the lingers as well @as the plates Aform inclinedplanes down y which the hot bars slide into the oil in the quenchingtank, the wedgev formation assuined by the intermeshing lingers in theirl inclined position, having a tendency to straighten thebars as they arereleased and yinsure vtheir entering the oil perfectly level, so thatwarping isreduced to a. minimum.

Means are provided to keep the articles in motion in the oil to insureuni-term cooling olie. For this purpose e., dipping` 'irai' 25 is givenan oscillai'oiy or shaking more nient in the tank. The tray 2.3 issliepen-1led at each end from vertical rod QC `vhieh may be actuated bya crunk, cam, or in any other suitable manner. For enannrile, thevertical rods 2G are connected above. 'to vertical bclts or orde E27runnino over guide rollers or pulleys QS and pu: ed over pulleys 29mounted on crank pins on di: ks llll keyed to a shaft 31 and driven byan overhead belt pulley 32, the other end oli lhese.

belts or cords being secured at the points il?. Suitable clutch gear llis provided for throwing the said shalt ll into and out oiI operation.This clutch gear can be operated from the iloor level through theinediuin oi" a chain the three armed rocking.' lever 35 and roi. 2l llythese means the dipping tray may be rapidly raised and lowered, sayabout thirty times per miuute, thus insuring the hot bars beinguniformly cooled. Any suitable. means may he provided to allow thedipping tray to be suspended in its top position without lhilling backowing to its weight and the weight of the material on it. For thispurpose each crank disk may be provided with a ratchet tooth or teeth 38ivhivh euu be engaged by a pawl 39. lhc crank diskseould be made withratchet teeth all around their periphery, or at one portion thereof. orthe periphery of the crank disks 'would be filled at a suitable positionwith a :-top. sui-l1 as a set screw cham'fercd on one side. or made witha notch in which the paul is adapted to engage in order to hold the trayin its raised position. @ne end of the belts '2T or the like isconnected at 3? to an fuif/hor lever 40 iointed to :1 long depending arm41 which can be locked by suitable means in any desired position. lllhenthe cooling is iiHiShed, the tray is stopped in il. rai-ed position andheld there by the pawl und ratchet or other locking device. lli'loosening the anchor lever andy pulling.,Y u down to the required extentinto say the por-.ition shown by the dotted lines the (liiuiirfitray canbe raised above the quenchingianli clear of the oil, and the tray isthru le': there to drain. The anchor levers are pre erably weighted soas to balance the tray when empty.

The depth of immersion of the tray in the dipping tank can be regulatedby the saine device namely by taking up more or less oi' the belt 27.

lll() llll lll)

I provide suitable means .lor circulating;

tanks. 'In `such an arrangement, for exain `ing tanks, and any desirednumber ot such tanks may be used, whichmay b e connected together inseries. The hotoil` which is taken from the upper part of the dippingtanks Qiby a pipe such as 42,is pumped b y a suitable pump to the top ofthe -tirst cooling tank 43 and passes through acoil or worm in the saidcooling tank to the bottom thereof, and then by a straight pipe up thecenter of thetank to a second tank 44 and is then forced down the coilin that tank and up the center oil the tank through a pipe to the nexttank 45 in the series and so on and then back to the lower part of the.dipping tank by pipe 46. The cooling tanks are preferably arranged at ahigher elevation than the quenching tanks 2, and where the plantcomprises a series of dipping or quenching tanks 2 as in Fig. 5 therespective dipping tanks 2 are connected by `branch pipes to main `pipescarrying the hot and cold oil. The pump may be inserted at any suitable`point in the pipe system, preferably in the hot oil pipe between thequenching tanks and the cooling tanks.

In action a carriaoe is caused tobring an empty platform or trough intoalinement with a furnace so that heated bars can be directly chargedthereunto. The carriage with its loaded platform is now moved by rollerson the over-head track so as to bring the loaded trough into a positiondirectly above the dipping tank. The platform `is then opened, and thebars slidedown the inclined support into the quenching tank so as toenter the oil therein. The bars are not released until just clear ofthefoil, and thus excessive splash is avoided. The tendency of theinclined fingers is to straighten the bars as they are released, and thebars being preferred perfectly level in the oil, warping is reduced to aminimum.

AThe features oi? construction, advantages, and operation of theapparatus will now be apparent. It is to be understood tliatI do notconsider my self limited to the details of construction hereindescribed, as various changes could be readily suggested which, whilethey might materially` change the appearance ot' the apparatus, wouldnot involve a departure from the scope of the invention herein setforth. Accordingly the relative positions of the various parts may bevaried, and instead oit arranging the carriage to run on an overheadtrack, it can be arranged to run on a track onthe ground level or on i alevel with the top of the tanks. Furthermore the apparatus for giving anup and `down finotion to the dipiiiiig carriage can be i modiiech It isto be understood that my inventionhas to underco a certain amount ol'constructional modification to suit thelparticular i local i conditionsot' each place at Whichfitis to he erected/ `1 i I declare that what I`claim is:-..

l. The combination with a furnace or :furnaces in which the heating ofmetal bars or other articles can be carried out, and fan' oil tank ortanks in i immediate proximity to `the said :turnaces in whichthedipping or .quencliingaot such heated `bars takes place,.ot aplatform` ortrough supported by a suitable carriage adaptedto travelupon a track and arranged `to bring the empty platform or troughintoalinement `with the `furnace so that the heated bars can be directlychail'ged thereonto, and be then conducted` into a position directlyabove the quenching tank to drop the bars into it.`

2. A. dipping or quenching arrangement tor metal bars and otherarticles, comprising a traveling carriage adapted to run on wheels alonga track, a quenching tank or tanks for holdingl oil or other liquids, a

platform or trough longitudinally divided into two portions pivoted tothe carriage, the two halves being arranged so as to be maintainedhorizontal or approximately so with their meeting edges in contact ornearly so when in position to receive the hot bars etc. but adapted totilt up or dip down on their pivotsso as to open and assumefan inclinedposition when releasing hot bars into the quenching tank.

` 3. A dipping or quenching arrangement for metal bars, comprising apivoted divided platform made of a i'iat plate or plates, and a seriesof supporting fingers extending beyond the meeting edges of the platethe bars of one platform alternating with and being wedge `formationassumed by the intermeshin g fingers in their inclined position having atendency to straighten the bars as they are released `and insure theirentering the `oil perfectly level so` that warping `is reduced to aminimum.

4. In a dipping or punching arrangement Stor metal `bars, thecombination with the pivoted divided platform of `a link and crankarrangement so arranged that when the two part platform is turned on itspivots it will` work in unison, and a handle in connection `with eachpart ofthe platform.

5. In a dipping or quenching arrangement 15V Ahave a narrow wheelbase'bywhich carriage tank or tanks and a platform supported by asuitablecarriage adapted to `travel along ay track, ofV adipping trayvon to `which the bars are discharged fromthe platformv or trough suchVdipping deviceV being given by suitable gear an upV and down motion inthe tank, for raised up clear ofthe liquid in the tank so as to drainand allow the bars to be removed.

6. In a dipping or'quenching arrangement ,for metal bars, thecombination with an oil tankV ortanks of a platform longitudinallydivided into two portionsand a traveling carriage made in braced archform so as to the two part platform is suspended.

7. In a dipping or quenching arrangement quenching tank or tanks, of aplatform longitudinally divided into two portions for bringing the barsto the tanks, and a carriage for supporting the two part platform, suchcarriage consisting of two opposite depending hangersmore or lessconverging toward each other below and suitably stayed together.

In witness whereof, I have hereunto signed my name this 19th day ofApril 1920,

in the presence of two subscribing witnesses.

JOHANNES ROBERT CARL AUGUST.

lVitnesses AUGUSTUS E. INGRAM, R. DE B. NIoHoLLs.

